Simple Acquaintance Friendship Letter

I am Mark Anderson. I was introduced to you by our team leader. Today, I am writing in to you to tell you that my younger brother has got an admission at the Ralph University. He knows no one there. So, I decided to drop a line to you and discuss something with you.

Presently, he is staying at an apartment that is in the same locality where you live. So, I just wanted to make sure that he has someone to approach in case of any kind of help.